Chair arm



FIG. 1 is a front right side perspective view of a chair arm showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a cross-sectional view thereof taken along the line 8—8 of FIG. 5 on an enlarged scale;

FIG. 9 is a cross-sectional view thereof taken along the line 9—9 of FIG. 5 on an enlarged scale;

FIG. 10 is a cross-sectional view thereof taken along the line 10—10 of FIG. 5 on an enlarged scale; and,

FIG. 11 is a cross-sectional view thereof taken along the line 11—11 of FIG. 5 on an enlarged scale. 

The ornamental design for a chair arm, as shown and described. 